Unfortunately, I think you have been invaded by boxelder bugs. They are a horrible nuisance but they do not bite. It will seem like they take over your home if you do not attack them aggressively however. Google "boxelder bug" and there is a lot of information. Here are two places to start.

I’m not sure why, but I totally don’t mind these bugs at all. In general, I wouldn’t say I’m scared of bugs, but I certainly always kill them on sight. But these guys, I don’t know, they just seem so friendly. They walk around slowly, with their two antennae pointed way up and wiggling around. They’re like a cartoon version of a normal bug.